Magnetic tape and shield cable

Abstract

A shield cable includes an insulated electrical cable of a conductor wire sheathed about the circumference by an insulator, and a magnetic tape layer formed by wrapping magnetic tape about the circumference of the insulated electrical cable. The magnetic tape is a magnetic tape shaped by continuously cutting to constant width an elongated sheet comprising a magnetic material. The magnetic tape, on at least the insulated electrical cable-facing surface thereof, has grooves extending in the lengthwise direction, for accommodating at least one of pairs of burrs that are formed at both widthwise edge surfaces during cutting of the elongated sheet.

The invention claimed is: 
     
       1. A magnetic tape formed by continuously cutting to constant width an elongated sheet comprising a magnetic material, the magnetic tape comprising:
 a groove in at least a back surface and in a lengthwise direction so as to accommodate at least one of a pair of burrs that are formed at both widthwise edge surfaces in the cutting of the elongated sheet. 
 
     
     
       2. A magnetic tape formed by continuously cutting to constant width an elongated sheet that comprises a magnetic material and a resin layer on a back surface, the magnetic tape comprising:
 a groove in at least the back surface and in a lengthwise direction to accommodate at least one of a pair of burrs that are formed at both widthwise edge surfaces in the cutting of the elongated sheet. 
 
     
     
       3. The magnetic tape according to  claim 1 , wherein the magnetic material comprises an amorphous alloy. 
     
     
       4. The magnetic tape according to  claim 1 , wherein the magnetic material comprises a nanocrystalline soft magnetic alloy obtained by performing heat treatment for nanocrystallization on an amorphous alloy containing Fe, Si, B and Cu and further containing at least one element selected from Ti, V, Zr, Nb, Mo, Hf, Ta and W. 
     
     
       5. A shield cable, comprising:
 an insulated electrical cable comprising a conductor wire and an insulation covering a circumference of the conductor wire; and 
 a magnetic tape layer formed by wrapping a magnetic tape on the circumference of the insulated electrical cable, 
 wherein the magnetic tape is formed by continuously cutting to constant width an elongated sheet comprising a magnetic material, and 
 wherein the magnetic tape comprises a groove in at least a surface to face the insulated electrical cable and in a lengthwise direction to accommodate at least one of a pair of burrs formed at both widthwise edge surfaces in the cutting of the elongated sheet. 
 
     
     
       6. A shield cable, comprising:
 an insulated electrical cable comprising a conductor wire and an insulation covering a circumference of the conductor wire; and 
 a magnetic tape layer formed by wrapping a magnetic tape on the circumference of the insulated electrical cable, 
 wherein the magnetic tape is formed by continuously cutting to constant width an elongated sheet comprising a magnetic material and a resin layer formed on a surface on a side of the insulated electrical cable, and 
 wherein the magnetic tape comprises a groove in at least the surface on the side of the insulated electrical cable and in a lengthwise direction to accommodate at least one of a pair of burrs formed at both widthwise edge surfaces in the cutting of the elongated sheet. 
 
     
     
       7. The shield cable according to  claim 5 , wherein the magnetic material constituting the magnetic tape comprises an amorphous alloy. 
     
     
       8. The shield cable according to  claim 5 , wherein the magnetic material constituting the magnetic tape comprises a nanocrystalline soft magnetic alloy obtained by performing heat treatment for nanocrystallization on an amorphous alloy containing Fe, Si, B and Cu and further containing at least one element selected from Ti, V, Zr, Nb, Mo, Hf, Ta and W.